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Old 05-07-2017, 05:17 PM
  #51  
TonyBuilder
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Stabilizer is shaped and ready to prep for the layups.


I checked the plans agents my sized drawings and as they were last build they are off a bit. Should have checked before I started but I caught it in time.

You can see the elevator per plans is a bit smaller in depth.

[ATTACH]2213788[/IMG]

Adjusted to the larger size.

[ATTACH]2213789[/IMG]

The original and the larger under it.
luckily with the foam i just add some to the LE and then cut to fit the new pattern, then sand.

[ATTACH]2213790[/IMG]

The stab is the correct shape and width but it is short. That's an easy fix. I just added to the tips.
The stab is now 2-1/2" longer over all.

[ATTACH]2213791[/IMG]


I drew an outline to locate the parts and what I need to add.
5/8" for the LE

[ATTACH]2213792[/IMG]

Larger sized elevator.

[ATTACH]2213793[/IMG]

I wont final shape the elevator until the stab is joined and I can see how the elevator will fit, once I lay it up there is not sanding or shaping that I can do. I might do the tips the same as on the stab.

[ATTACH]2213795[/IMG]

For the tips of the stab I did a layered sandwich method. This gives a center line and then some lines in the layers so I can gauge the shape.

The center is cut from 1/32 birch ply. This is the shape final outline. That gets centered with the use of a strait edge, then glued in, 1/8" balsa on top of the ply, then 1/4" balsa on top of that.
You can see how the layering helps in gauging the shape. Once you git to the ply center you are at the correct shape.

[ATTACH]2213797[/IMG]

[ATTACH]2213799[/IMG]

The LE of the stab is centered with a sharpy and a strait edge then sanded to that line. I am going for the sharp LE look and with the composite layups I can get away with it.

[ATTACH]2213800[/IMG]

[ATTACH]2213802[/IMG]

[ATTACH]2213804[/IMG]

This is what I am going for.

[ATTACH]2213806[/IMG]

You can see it comes to a sharp LE.

[ATTACH]2213808[/IMG]

Once i join the to halves I will get a soft sharp edge.

[ATTACH]2213810[/IMG]

This is one of the LE ribs.

[ATTACH]2213812[/IMG]

[ATTACH]2213814[/IMG]

[ATTACH]2213816[/IMG]

the ply is a good center to keep it all strait and strong for the mold making posses.

[ATTACH]2213818[/IMG]

[ATTACH]2213820[/IMG]

[ATTACH]2213822[/IMG]

I will prep this for the layups.


TB
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